journal6 ›› 2009, Vol. 30 ›› Issue (6): 54-58.

• Physics and electronics • Previous Articles     Next Articles

Chemical  Physical Phenomena During Charge-Discharge Processes of MH/Ni Battery and Its Mechanism


  1. (Shanghai Institute of Micro-System and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China)
  • Online:2009-11-25 Published:2012-04-20

Abstract: The fine structure and microstructure changes of electrode active materials   β-Ni(OH)2 and AB5 alloy during charge-discharge processes are studied in detail by  X-ray diffraction (XRD).Chemical physical of electrode active materials and physical conductive mechanism are elucidated.To be brief,the physical conductive mechanism of MH/Ni battery is the directional migrating and moving of hydrogen ions between the positive and negative electrodes because hydrogen atoms are deviating from the β-Ni(OH)2 lattice and inserting into AB5.

Key words: chemical physics, MH/Ni battery, phase structure and microstructure, X-ray diffraction (XRD)

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